linux/drivers/firmware
Sudeep Holla 3bdd884371 firmware: arm_scpi: decrease Tx timeout to 20ms
Currently we have Tx timeout of 50ms while Rx timeout of 20 ms. Tx state
machine is maintained by the mailbox framework and Rx by SCPI driver.

It is possible that before msg_submit call tx_prepare(because of other
message in the queue and the channel being active), wait for completion
in scpi_send_message times out and the buffers are freed. In that case
when Tx state machine timer goes off later, poll_txdone calls
scpi_tx_prepare on that message, which adds it to the rx_pending list,
corrupting link pointers.

This patch reduces the Tx timeout to 20ms and increases Rx timeout to
30ms to avoid the above mentioned issue.

Reported-by: Jon Medhurst (Tixy) <tixy@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2016-02-16 09:26:27 +00:00
..
broadcom drivers/firmware/broadcom/bcm47xx_nvram.c: use __ioread32_copy() instead of open-coding 2016-01-20 17:09:18 -08:00
efi UBSAN: run-time undefined behavior sanity checker 2016-01-20 17:09:18 -08:00
google
arm_scpi.c firmware: arm_scpi: decrease Tx timeout to 20ms 2016-02-16 09:26:27 +00:00
dcdbas.c
dcdbas.h
dell_rbu.c
dmi_scan.c firmware: dmi_scan: Save SMBIOS Type 9 System Slots 2016-01-15 22:08:45 +01:00
dmi-id.c
dmi-sysfs.c
edd.c
iscsi_ibft_find.c
iscsi_ibft.c
Kconfig ARM: 8478/2: arm/arm64: add arm-smccc 2016-01-04 16:19:57 +00:00
Makefile Merge tag 'arm/soc/for-4.4/rpi-drivers' of https://github.com/Broadcom/stblinux into next/drivers 2015-10-26 10:39:22 +09:00
memmap.c
pcdp.c
pcdp.h
psci.c ARM: 8481/2: drivers: psci: replace psci firmware calls 2016-01-04 16:24:45 +00:00
qcom_scm-32.c qcom-scm: fix endianess issue in __qcom_scm_is_call_available 2015-10-14 14:51:21 -05:00
qcom_scm-64.c firmware: qcom: scm: Add function stubs for ARM64 2015-09-23 12:00:43 -05:00
qcom_scm.c
qcom_scm.h
raspberrypi.c ARM: bcm2835: Add the Raspberry Pi firmware driver 2015-10-14 15:30:06 -07:00